Nurul Melani Haifa, Indah Nabilla, Virda Rahmatika, Rully Hidayatullah, Harmonedi Harmonedi. Identifikasi Variabel Penelitian, Jenis Sumber Data dalam Penelitian Pendidikan. Dilan [Internet]. 2025 May 3 [cited 2026 Mar. 18];2(2):256-70. Available from: https://journal.lpkd.or.id/index.php/Dilan/article/view/1563